Bange



May s, 1925.

J. F. LAMB RANGE Filed April 2. 1921 4 Sheets-Sheet l avwewtoz W May 5, 1925- J. F. LAMB RANGE Filed April 2. 1921 4 Sheets-Sheet 2 vwewtoz May 5, 1925- 1,537,030

J. F. LAMB RANGE Filed ?A pri1 2, 1921 4 Sheets-Sheet 5 T M @ggw $1,

Patented May 5, 1925.

BANG-l3.

Application filed April :2. 19:3

To all whom it may concern:

Be it known that l. J-osnrn l". l inin. a

citizen of the United States. resi ing in: New Britain, in the county of Hartford. State of Connecticut, have invented certain new and useful improvements in a Range,

of which the following a specili 'ation.

The present invention has. as its object to provide an electric range having xii-ions features of novelty and advantage.

In accordance with the present invention, the frame work of the range, for the mo t part, is formed of irons angular in trans verse section; the cover plates and panels are formed of sheet metal pressed or bent intothe desired shape, and the parts are so arranged andassembled that practically all bolts, rivets or other means for securing the parts together are hidden from view; consequently, the range presents a very pleasing and neat appearance and, turthermi'nre, there being no exposed bolt heads, or the like, about which grease or other foreign matter can accumulate, it is very easy to keep the range in a clean and sanitary condition. Since the range is almost entirely made up of light metal parts which may be cheaply and easily assembled, avery economic structure is presented, while at the. same time the parts are so arranged and secured together that the range has the necessary rigidity and strength. The invention is also concerned with the novel construction and arrange-- ment of the oven.

In the accompanying drawings:

Fig. 1 is a perspective view of the range constructed in accordance with that embodiment here selected for purpose of illustration.

Fig. 2 is a perspective view of the skeleton or vtramework of the range.

Fig. 3 is a sectional view showing-the manner in which the switches and fuses are enclosed.

Fig. et is a sectional view through one end of the body portion of the range and shows the manner in which one ofthe end panels is assembled on the frame.

Fig. 5 is a top plan view of one of brackets 13.

. Fig. 6 is'a horizontal sectional view taken through the back of the range beneath the oven.

Fig. 7 is a vertical sectional view taken the through the back of the range. the oven being omitted.

Fig. h is n rertical sectional view taken bro ah the hack oi the range and the shelf thereoii.

i re. 5'? is an enlarged detail view showing the manner in which the hot plates are supported.

Fig. 10 is a sectional view taken vertically and longitudinally through the oven, and

ll is an enlarged detail view showing the construction of the hinges for the oven door.

Fig. 12 an enlarged detail view showing th inani'ier oi attaching' the legs.

From l ig. 1, it will be seen that in general arrni'igeinent the range has a body portion sup mrted on legs a and provided with a top plate carrying electrical hot plates (Z. Rising from the rear edge of the body portion is a back (I and extending from this back and spaced above the top plate is an oven 7. Alongside oi the oven is a shell"; g which may also be provided with a hot plate 2'.

The construction of the frame worl; oi the range will be most clearly understood by re 'erring to Fig. 2. It will be seen that the frame for the body portion of the range comprises two similar rectangular members 11') and 11, each formed of angle iron, and corner brackets securing these members in spaced relation, the rear corner brackets being designated by the numeral 12 and the front ones by numeral In the present instance. the front sill and the side sills of each of the members 1O, 11 are formed of one angle iron, while the rear sill is made separately. The angle between the horizontal and vertical webs of the angle irons iori'i'iing the top frame member 10 faces inwardly and up a'ardly, while the angle between the webs of the bottom frame men her 11 faces inwardly and downwardly. The horizontal webs of the members 10 and 11, respectively, are secured by spot welding, rivets or otherwise to the upper and lower ends of the brackets 12 and 13. Each of the front corner brackets 13 may be or" angular shape in cross section and provided with flanges 15 at its upper and lower ends to which the horizontal webs of the members 10 and 11 are secured. Extending from the front edges of the brackets 13 are wings 16 which receive the covers for the switches and their fuses as hereinafter described. If desired,.braces 17 may be positioned between the corresponding side sills of the members and 11. 18 denotes a strut of angle iron secured at its ends to the front and rear sills of the member 10.

The numeral 20 designates the skeleton frame for the back of the range comprising an angle iron the ends of which receive and are secured to the outside corners of'the rear corner brackets 12. The framework which constitutes the corner irons for the oven comprises two members 23 of similar construction and each being formed of an angle iron bent to the shape shown. These mem bers are suitably secured to the member 20. The numeral 2 1 designates bracket arms secured to the member 20 and supporting the shelf g.

From Fig. 12 it will be seen that legs are secured by means of screws 21 to anchor.

members 22 positioned in the corners of the frame nremberrll and secured thereto by bolts 25. It will be noted that the legs may be attached to and detached from the range with great facility as ready access may be had to the screws from beneath. the body portion of the range. The flanges of the frame member 11 conceal the anchor members The manner in which the end panels 26 are assembled on the body portion of the frame is shown clearly in Figs. 2 and 4. It will be seen thatthe upper and lower edges of the panel 26 are turned inwardly providing flanges 27 and the upper and lower ends of the braces 17 and the brackets 12 and 1.3 are notched as at 28 to receive these flanges. Thus each panel may bevery easily assem bled by merely bringing the flanges 27 into registry with the notches 28 and then push ing the panel inwardly, no other means than friction being provided for securing the panel in place.

From Figs. 1, 6 and 7, it will be seen that the oven is supported on brackets 30 and 31 which rise respectively from the cross strut l8 and the right hand side sill of the member 10. These brackets in one manner of speaking constitute portions of the frame work. At the left hand end of the range is a bracket 32 preferably formed of sheet metal and. which aids in supporting the shelf 7. The shelf 9, together with a panel 3 rising from the back edge thereof, is preferably formed of sheet metal. The edges of the shelf are bent to form a depending skirt 3% and the edges of the panel 33 being bent to form a flange 35 which fits snugly within the portion of the frame member 20 at the left side of the oven. Beneath the shelf g. and between the brackets 32 and 30 is a sheet metal panel 36 the edges of which are also turned inwardly to provide flanges 36. One side eat en flange of this panel abuts snugly against the bracket 32 and the other en ages in a rearwardly facing angle formed y a later-- ally extending flange 37 on the bracket 30. Beneath the oven and positioned between the brackets 30, 31, is a panel 38 similar to the panel These panels may be inserted from the back of the range and are held in position'by studs or pins 39 in the rearwardly extending webs of the brackets 30, 3.1, and taking into notches 1 .0 in the flanges of the panels, as most clearly shown in Figs. 6 and 7. The top plate 0, preferably formed of sheet metal, is recessed or slotted at its rear edge to accommodate the brackets 30, 31 and this rear edge is upturned to form a lip 4-2, as shown in Fig. 6. It will be seen that the lower ends of the panels 36 and 38 extend below the upper edge of the lip 42. If desired, the panels 33, 36 and 38 may be white enamelled.

Positioned at the front of the body portion a between the corner brackets 13, 13, are the switches t l and the fuses 45, the base members 46 of which are suitably secured to the cross bars 47. A sheet metal partition 48 closes the back of the chamber in which the switches are located. It is preferable that the switches and the fuses be enclosed to elfect a neat appearance while at the same time access thereto may be. readily had. To

this end, there are provided removable cover 1 plates 49 and 50 for the switches and fuses, respectively. The plate 49 has a plurality of apertures the edges of which are flanged and fitting over these flanges are caps 49 through which extend the operating stems of the switches. The ends of the covers 49 and 50 seat on the wings 16. It will be seen from Fig. 3 that the upper edge of the cover 19 is received in a groove provided between the member 10 and the offset edge of the member 4-8: the lower edge of the plate 50 is received by groove between the bar 47 and the angle iron member 11; and the adjacent edges of the covers are bent inwardly and abut as at 51. It will be readily seen that to gain access to the switches or fuses,

forwardly.

To prevent grease and the like, which may splash onto the top plate, from running down bet a can the hot plates d and the edges of the op n ngs in which they are positioned on the top plate 0, the edge of each of these og'icnings. as most clearly shown in Fig. 9, is bent upwardly to form an upstanding lip 53, and the hot plates have laterally extending, downwardly (flll'YQd flanges 54 covering these lips.

Reference will now be made to the construction of th oven which is most clearly shown in Figs. 10 and 11. It will be seen that the oven has an outside shell consisting of sheet metal side panels 60 fitting within it is merely necessary to pull the cover plates oven p Lissaose the respective corner irons 23; top and bottom panelstil with their edges turned to "form flanges 62 which abut against the side panels, and a rear panel 43;, secured in posi- ..tion'-foi"-vardly of the rear edges ot the side panels so to leave a space behind the oven through which the electric conducting wires ,n'iajy.beled. This outer shell is lined with suitableheatinsulating material tj-l which inlay bGlTr'l'llO'fOllll of blocks or slabs.- 65 indicates the inner lining or shell of the It The top, bottom and side walls of this, ining are ircferab-ly formed of a single pil'cjeiofishcet metalbent into hollow rectangular shape. Each .of these walls has a concaved portion or depression 65 which serves to space the other portions of the lining from the insulation material tS-l thus providing air spaces (37 which aid in heat insulating the inner lining. The depression in the bottom of the lining forms a well or cup which catches the products of condensation, such as water and grease, and thus prevents them from running outof the oven. The heat within the oven'tends to vaporize these drippings especially when the unit is immediately above the well. as in Fig. 10. The rear all 68 of the inner lining is welded to the other walls and is spaced from the insulating material 64:. 70 indicates the front frame of the oven which may be'seeured to the forward ends of the corner irons '23 by bolts 71. It will be seen from Figs. 10 and 11,that

surrounding and welded to the forward end of the lining 65 is a throat piece 72, the outer edge of which is bent to form a lip taking into a groove 73 in the front face of the front 70. The inner lining or shell of the oven may be removed as an entirety by merely taking out the bolts T l and then drawing the lining forwardly through the frame 70. Owing to the fact that the insulation 64 is in the form of slabs or blocks, this insulation will not be disturbed when the lining is removed. Hung on each side of the oven in any suitable manner are racks 75 having suitably spaced. cleats for supportin; shelves or cooking utensils. 76 denotes a heating unit which isplaced in the lower part of the oven. as shown in Fig. it), when baking is desired. This unit may be positioned on the topmost cleat when the food is to be broiled. 77 denotes terminal plugs adapted to receive the terminal pins t Fig. 11, 83 denotes a hinge member in the fornr of a yoke having a stem Set slidably mounted in a bearing in the front il and about this stem and between a collar 85 thereon and the from 'd is a c mpression spring 86 which urges the hinge int-tuber lIUWllfdly. The oven door has a hug connected to the hinge member by a pintle 85s. it will be seen that with this hinge construction, the oven door, (the edge oi which is preferably taperedt -is shown) when it is closed, will extend into and snuglv lit in the tapered throat piece T52, thus rov ding :1 gas tight closure.

lhe ear of the back c and the oven may he covered over by a sheet or plate of metal 90. work are suitably apertured, as at. 9].. o receive the insulators 92 for the conducting wires leading to the hot plates. It will be noted that all of the conducting wires are concealed from view, those for the hot plate 9 and the oven heating unit 76 being led through the space provided between the rear plate and the panels carried by the back frame.

It is, of course, obvious that. the invention is susceptible of various modifications and changes which are within the spirit of the invention without departing from the scope of the following claims, it being understood that the present disclosure of the invention is by way of illustration only and it is not to be taken as restrictive of my conception.

I claim as my invention 1. In a device of the character described, a body frame, a back frame and an oven extending forwardly from the latter, said body frame and back frame being formed, in part, of irons angular in cross section, panels carried by said back frame, a plate covering the rear of said back frame and oven, insulators carried by the angle irons of said frames, and conducting wires passing through said bushings and the space provided between said panels and oven and said plate.

2. In a device of the character described, a plate having an opening provided with an upturned edge constituting an annular lip, and a removable electrical heating unit positioned in said opening and including a casing enclosing a resistance wire. said casing having an outwardly extending flange extending over said lip whereby to prevent grease or the like from passing down between said unit and plate.

3. In a device of the character described, a plate formed of sheet metal and having an opening the edge of which is turned to form an upstanding lip, and an electrical heating unit positioned in said opening and provided with an outwardly extending, downwardly curved flange covering said lip.

In a device of the character described, a body portion, a plurality of heating units, switches therefor positioned Within the front The angle iron members of the frameof said body portion, a removable cover in front of said switches having a lurality of flanged openings, and a cap cosing each flanged opening and having apertures through which the operating stems of the switches extend.

In a device of the character described, a body portion having a pairof spaced apart forwardly extending wings, a plurality of heating units, a plurality of switches for said units positioned between said wings, and a rei'novable cover plate for said switches having its ends supported by said wings.

6. In a device of the character described, a body portion having top and bottom front sills and a pair of spaced apart forwardly ing on said wings, and a removable cover for said fuses with its lower edge engaging in the other of said grooves and its side edges resting on said wings, said covers having their adjacent edges inturned 'n'd abutting.

7. In combination, an eleetri, al hot plate,"

an oven, means for supporting said hotplate in position at the bottom of said oven and in osition at the top of said oven, and contacts carried by said oven for engagement with the terminals of said hot plate.

JOSEPH F. LAMB. I 

